deep creek lake fisheries - maryland€¦ · largemouth bass and bluegill exhibit parental care of...
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Deep Creek Lake supports a diverse fish
assemblage, with warmwater, coolwater,
coldwater species represented in the fisheries.
We documented 20 fish species in the lake
including:
• largemouth bass and smallmouth bass
• northern pike and chain pickerel
• rainbow trout and brown trout
• rock bass, pumpkinseed, and bluegill
• yellow perch
• black crappie
• walleye
Deep Creek Lake Fisheries
Presented by Alan Klotz, Western Region Fisheries Manager
Fishing and Boating Services
Freshwater Fisheries Program
Warmwater Fish - group of fishes that thrive and reproduce in water temperatures
warmer than 80 °F, preferred range 70-85 °F. Examples include the largemouth bass
and bluegill. Warmwater fish populations in Deep Creek Lake are characterized by
diverse age and size structure with a large portion of the population in the quality to
preferred size range.
Warmwater Fishery
Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting
sites are within submerged aquatic vegetation beds in shallow water areas.
Shallow Spawning Habitat
A seine net is used for reproductive success surveys for warmwater fish species in shallow water areas.
Monitoring Reproductive Success
Coolwater Fish – group of fishes that thrive and reproduce in water temperatures less than 80°F
but warmer than 60 °F, preferred range 65-70 °F. Utilize shallow water areas for reproduction earlier
in the spring. Examples include northern pike, walleye, smallmouth bass, and yellow perch.
Population indices indicate that these fish species are at high abundance levels, characterized by
diverse age and size structures.
Coolwater Fishery
About 4,350 rainbow trout and brown trout are stocked in Deep Creek Lake each year by DNR’s
Fishing and Boating Services. These fish are able to survive year-round due to the coldwater layer
of the lake during summer. These fish provide a unique fishing opportunity using the down-rigging
method during the summer period.
Coldwater Fishery
The History Youghiogheny River Catch and Return Trout Fishery
1987 – Trout Unlimited Proposal for a Special Trout Fishing Management Area.
1993 – Catch and Return Trout Fishing Area established between Hoyes and Sang Run (3.7 miles).
1995 – Temperature Enhancement Releases, Minimum Flows, and Dissolved Oxygen
augmentation from the Deep Creek Hydro-station were implemented.
Youghiogheny River Catch and Return
Trout Fishery
Deep Creek Lake Hydro-Electric Power Station’s Water Appropriation Permit Conditions to enhance the trout
fishery:
Maintains water temperatures in the river <77 ºF (25 ºC) Fat the lower boundary Sang Run Bridge ( < 4 miles
downstream) through temperature enhancement releases (TER) during the critical summer period.
Maintains minimum river flow of 40 cubic foot per second at Hoyes Run.
Maintains dissolved oxygen at > 6.0 mg/l at the end of the tailrace during release.
Youghiogheny River Catch and Return
Trout Fishery
DNR’s Fishing and Boating Services: fingerling rainbow
trout and brown trout stocked each year (management
objective 10,000 of each species). “Put and Grow”
fingerling stockings result in beautifully colored
naturalize trout. Adult trout are also stocked to
supplement the fishery.
Youghiogheny River Catch and Return
Trout Fishery
Great public access:
• Parking areas at Hoyes and Sang Run.
• Angler trail along public lands bordering river.
• Paddle craft float fishing opportunities between
Hoyes and Sang Run.
Youghiogheny River Catch and Return
Trout Fishery
The Youghiogheny River along with the Savage River
are the most popular trout fishing destinations in
Garrett County (Knoche 2017).
Youghiogheny River Catch and Return
Trout Fishery
Two sample stations are
monitored annually (Hoyes and
Sang Run Areas) to estimate
the trout populations using
standardized methods. These
field surveys are part of Garrett
College’s Fisheries
Management Class curriculum.
The Fishing and Boating
Service invests about ~
$55,200 annually to manage
the Youghiogheny River C&R
Trout Fishing Area including
trout stocking, temperature
monitoring, trout population
sampling, routine maintenance,
and report writing.
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
534
926
0
100
200
300
400
500
600
700
800
900
1000
Pre-TER Post-TER
Tro
ut
per
mil
e
Youghiogheny River Catch and Return Trout Fishing Area Trout Densities 1988 - 2017
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
11
21
0
5
10
15
20
25
Pre-TER Post-TER
Bio
mas
s (L
bs.
/acr
e)
Youghiogheny River Catch and Return Trout Fishing Area Trout Biomass 1988 - 2017.
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
A “quality-sized trout” is greater than or equal to 12 inches.
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
40
119
0
20
40
60
80
100
120
140
Pre-TER Post-TER
Qu
alit
y S
ize
Tro
ut
per
Mil
e
Youghiogheny River Catch and Return Trout Fishing Area Quality Size Trout Per Mile 1988 - 2017.
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
Summary: Catch and Return Trout Fishing
regulations coupled with TERs, minimum flow
maintenance, and dissolved oxygen augmentation
has resulted in:
an increase in trout biomass.
an increase in trout densities.
an increase in quality-sized trout.
an expansion of trout fishing opportunities in the
Sang Run to Friendsville area of the river.
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
Whitewater recreation also benefits
from the temperature enhancement releases
Youghiogheny River Catch and Return
Trout Fishery
2017 Youghiogheny River Trout Survey
Youghiogheny River Catch and Return
Trout Fishery - Monitoring
Youghiogheny River Catch and Return
Trout Fishery – Trophy Trout
2016 Maryland Non-Tidal Angler Survey
Scott Knoche, Director, Morgan State University PEARL(in cooperation with Maryland DNR)
Survey Objective & Development
• Objective - Cost-effectively collect management-relevant information on MD non-tidal anglers, to draw scientifically-defensible, population-level conclusions while minimizing sources of error
• Worked closely with MD DNR Fishing and Boating Services personnel to develop and refine survey structure & content
• Rigorous Survey Pretesting to ensure comprehension• Hour-long cognitive interviews (N= 18)
• Using screen sharing software, investigator monitored individuals taking web survey
• Afterwards, in-depth discussion on survey comprehension
• No major issues identified, some minor changes made
Survey Sampling & Mailing
• Random sample of 4,285 individuals• Sample Population: Individuals licensed to fish in
non-tidal Maryland waterways during 2015
• Up to four mail contacts
• Letter & Post Card Web Survey Solicitation (Mailings 1 – 3)
1. Letter introducing survey w/ survey web address
2. Reminder postcard 1 w/ survey web address
3. Reminder postcard 2 w/ survey web address
• Hard Copy Survey (Mailing 4)
4. Survey booklet with Business Reply Mail envelope
• Response rate• 962 responses / 3829 valid addresses = 25.1%
Survey Content
• General fishing effort
– For up to 6 non-tidal fishing locations 2015, asked anglers to provide:
• Name of Waterbody, County fished, # of trips, and species targeted (multiple)
• Trip-specific information
– Asked anglers to recall details about specific fishing trip in 2015
• # of people, # of nights away, fishing method, satisfaction measures, expenditures...
• Trout-specific questions
– Factors influencing trout fishing site choice
• Regulations, catch rate and size, distance from home, species preference (stocked vs. wild)
• Participation question
– Changes in what factors would increase the number of fishing trips taken
• Increased leisure time, improved access, less crowding, catch more fish,...
• Angler Demographics
Deep Creek Lake
Trip Duration62% overnight trips21% weekend trips31% extended stay (4 or more nights)
Species Targeted (% of trips)
Bass: 42% Yellow Perch: 42%Walleye: 35%Anything: 27%Smallmouth Bass : 21%Largemouth Bass : 19%Bluegill/Sunfish: 16%Crappie: 11%Northern Pike: 10%
2015 Effort: An estimated 19,400 individuals took 86,700 fishing trips to Deep Creek Lake
2015 Trip Expenditures: $731 mean; $300 median; Estimated Total 2015 = $63,000,000
Trip PurposeFishing was the primary purpose on 52% of trips
*trip calculations (expenditures, duration, purpose,
species) based on n = 60 sample
Youghiogheny River
Trip Duration33% were
overnight trips (stay > 1 night)
Species Targeted (% of trips)
Trout (any): 89% of tripsStocked Trout: 44%Smallmouth Bass : 33%Brown Trout: 22%
2015 Effort: An estimated 3,600 individuals took 19,800 fishing trips to Youghiogheny River
2015 Trip Expenditures: $162 mean; $35 median; Estimated Total 2015 = $3,200,000
Trip PurposeFishing was the primary purpose on 78% of trips
*Trip calculations (mean/median expenditures, duration,
purpose, species targeted) based on n = 9 sample.